Parker M8A-RH4A-VT-SS-K5 - Relief Valves, 6,000 PSI - R Series

Parker's R Series Relief Valves are designed such that when the upstream pressure exceeds the closing force exerted by the spring, the lower stem opens, permitting flow through the valve. Pressures range from 10 PSI (0.7 BAR) to 6,000 PSI (413.7 BAR).
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Brand Parker
Part No. M8A-RH4A-VT-SS-K5
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Products specifications
Attribute nameAttribute value
Connection 1 SizeTwo Ferrule Compression FittingCracking Pressure2250 - 3000 psi
Connection Size8 mmMaximum Operating Temperature400 °F
Actuation TypeStandardFlow Coefficient0.41 Cv
DivisionInstrumentation Products DivisionMaximum Operating Pressure3000 psi
Materials of Construction316 Stainless SteelConnection 2 Size8 mm
Back-Up Washer MaterialPTFEMinimum Operating Temperature-23 °C
Packing MaterialFluorocarbon RubberCracking Pressure (psi)2250 - 3000
Packing MaterialFluorocarbon RubberActuationStandard
Connection 1 StyleTwo Ferrule Compression FittingMaterial316 Stainless Steel
Connection Size 28 mmConnection Size8 mm
Connection 2 StyleTwo Ferrule Compression Fitting
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